Aren't able to cancel a contract

My wife's contract was in my name. It was a no handset contract, so no cancellation penalty is required. I cancelled her contract with Cell C via their cancellations dept and bought her a new phone on a different network. The number was ported successfully to the new network before the 31st of December 2014. She has been using it on the new network with no issues for 9 months.<br> I cancelled my last contract with Cell C 3 months ago, yet I've noticed a debit order of R110 coming off my account every month. I've called the call centre and they informed me that this is for my wife's contract which I cancelled in December.<br> The call centre then referred me to the Cancellations dept saying that the contract was not cancelled. I called the cancellations dept, they told me the port out was not processed successfully. I called the porting department, where a very rude lady told me I needed to go back to the call centre. Everyone I talk to says its someone elses problem. In the mean time I'm still getting debit orders of R110 per month and I have no Cell C contracts at all now. Cell C needs to cancel and refund me R880. The Cell C person I spoke to in Dec assured me no penalty would apply.